1520971720

素因数分解:

$2^3\times 5^1\times {\mathrm{1223}}^1\times {\mathrm{31091}}^1$

素因数の和:32325

約数の個数: 32

約数和(自身を含む): 3425094720

約数和(自身を除く): 1904123000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1223, 2446, 4892, 6115, 9784, 12230, 24460, 31091, 48920, 62182, 124364, 155455, 248728, 310910, 621820, 1243640, 38024293, 76048586, 152097172, 190121465, 304194344, 380242930, 760485860, 1520971720]

約数ペア:

[(1, 1520971720), (2, 760485860), (4, 380242930), (5, 304194344), (8, 190121465), (10, 152097172), (20, 76048586), (40, 38024293), (1223, 1243640), (2446, 621820), (4892, 310910), (6115, 248728), (9784, 155455), (12230, 124364), (24460, 62182), (31091, 48920)]